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ftrace: remove ftrace hash

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The ftrace hash was used by the ftrace_daemon code. The record ip function
would place the calling address (ip) into the hash. The daemon would later
read the hash and modify that code.

The hash complicates the code. This patch removes it.

Signed-off-by: Steven Rostedt <srostedt@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Steven Rostedt
2008-10-23 09:33:07 -04:00
committed by Ingo Molnar
parent 4d296c2432
commit 08f5ac906d
3 changed files with 38 additions and 216 deletions
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8
include/linux/ftrace.h
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@@ -44,8 +44,6 @@ static inline void ftrace_kill(void) { }
#endif /* CONFIG_FUNCTION_TRACER */
#ifdef CONFIG_DYNAMIC_FTRACE
# define FTRACE_HASHBITS 10
# define FTRACE_HASHSIZE (1<<FTRACE_HASHBITS)
enum {
FTRACE_FL_FREE = (1 << 0),
@@ -58,9 +56,9 @@ enum {
};
struct dyn_ftrace {
struct hlist_node node;
unsigned long ip; /* address of mcount call-site */
unsigned long flags;
struct list_head list;
unsigned long ip; /* address of mcount call-site */
unsigned long flags;
};
int ftrace_force_update(void);